Geodynamics and Active Tectonics of Fiordland, New Zealand: Workshop

此外，沿板块边界的扭压调节可以通过多种方式实现。沿新西兰南岛澳大利亚-太平洋板块边界，板块边界南阿尔卑斯山段的地壳/岩石圈缩短和抬升与Fiordland段的局部俯冲行为之间的挤压构造样式发生了深刻的变化。为什么板块边界构造发生如此大的变化，而板块运动学却没有发生任何重大变化，这是岩石圈地球动力学的一个基本问题，很可能反映了构造史、局部岩石圈结构和三维板块运动学的复杂相互作用。要解开这套复杂的流程，需要真正的跨学科研究。为了促进这种跨学科研究并为未来的合作项目制定计划，我们正在举办一次研究研讨会，重点是菲奥德兰板块边界地区的地球动力学和活动构造。讲习班将于2002年1月(新西兰夏季)举行。讲习班的“会议”部分在达尼丁的奥塔戈大学举行，而讲习班的“实地”部分(涉及部分与会者)设在菲奥德兰东部边缘的小镇Te Anau。大学环境为科学陈述(口头和海报)和讨论提供了合适的设施，而Te Anau是进入Fiordland的绝佳基地。为了鼓励就我们目前对该区域构造的理解进行重点讨论，海报介绍和大量讨论时间是讲习班会议部分的主要组成部分。为了提供跨学科问题的概述，每半天的会议都有一份“背景”报告。

0118939FurlongThe accommodation of transpression along plate boundaries can be accomplished in many ways. Along the Australian - Pacific plate boundary within the South Island of New Zealand, there is a profound change in the style of transpressional tectonics between the crustal/lithospheric shortening and uplift of the Southern Alps segment of the plate boundary and the localized subduction-like behavior of the Fiordland segment. Why such a substantial change in plate boundary tectonics occurs over distances of only tens of kilometers without any significant change in plate kinematics is a fundamental issue of lithospheric geodynamics and most likely reflects the complex interplay of tectonic history, local lithospheric structure, and 3-D plate kinematics. Unraveling this complex set of processes requires truly interdisciplinary studies. In order to foster such interdisciplinary research and develop plans for future collaborative projects, we are holding a research workshop focusing on the geodynamics and active tectonics of the Fiordland plate boundary region. The workshop will occur in January 2002 (the New Zealand summer). The 'meeting' segment of the workshop is at the University of Otago in Dunedin, while the 'field' segment of the workshop (involving a subset of the meeting attendees) is based out of Te Anau, a small town on the eastern margin of Fiordland. The university setting provides suitable facilities for scientific presentations (both oral and poster) and discussions, while Te Anau is an excellent base for sorties into Fiordland. In order to encourage focused discussions of our current understanding of the tectonics of the region, poster presentations and substantial discussion time are the main component of the meeting part of the workshop. To provide an overview of the interdisciplinary issues, there is one 'background' presentation for each half-day session of the meeting.